1 string or 2?

[DomB]

Chaps, if the inverter can take the voltage and wattage etc of an array as 1 string what are the reasons other than differences in panel shading / orientation / pitch to split an array into more than 1 string?

Thanks!

 

[BruceB]

Not many reasons to split - inverters work better with the higher voltages, generally.
You do start hitting the limits of what the standard ranges of dc isolators will cope with though.

Regards
Bruce

 

[DomB]

DC isolators - good point, thanks.

 

[daytona600]

no problem with isolators to 1000vdc limit of most inverter mppt ranges
string output only as good as its weakeast link or module
snow , leaves , bird **** , shading
sometimes smaller strings are better